1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Scorpion4ik [409]
2 years ago
13

Neha swims in a 90 m long pool. She covers 180 m in

Physics
1 answer:
mario62 [17]2 years ago
3 0

Answer:

speed in m/s is 3m/s

Explanation:

as she swims 90m in 30 seconds

dividing  90 by 30 will give 3m/s

You might be interested in
The momentum of an object is proportional to its weight and speed.<br> a. true<br> b. false
Crank
It would be A.. True
4 0
3 years ago
The sun is part of which type of galaxy?
jeka94
I believe the answer is D. The milky way is a spiral galaxy, You can tell just by looking at it.
4 0
3 years ago
What does the law of conservation of energy state?
pishuonlain [190]
The answer is B. good luck :)
8 0
3 years ago
Read 2 more answers
The molar enthalpy of fusion for water is 6.008 kj/mol. what quantity of energy is released when 253g of liquid water freezes? (
e-lub [12.9K]
During freezing, energy is released by the mass of water without change in temperature. Such energy will also be required if the same mass of water has to be melted.

Then,

Number of moles = mass/molar mass = 253/18.02 =14.04 moles

Energy released = moles*molar enthalpy of fusion = 14.04*6.008 = 84.35 kJ
6 0
2 years ago
What would occur if the index of refraction of a material was less than n=1?
Bingel [31]

The correct answer is (A). The speed of light would increase to a speed larger than the maximum speed of light in vacuum.

The index of refraction is the ratio of speed of light in vacuum to the speed of light in a medium.

n=C/V

here, n is the index of refraction, c the speed of light in vacuum, v is speed of light in any medium.

Now if the value of index of refraction is less than one, than the value of speed of light would be greater than the speed of light in the vacuum.


3 0
3 years ago
Read 2 more answers
Other questions:
  • n electromagnetic wave in vacuum has an electric field amplitude of 611 V/m. Calculate the amplitude of the corresponding magnet
    8·1 answer
  • Some birds migrate 20,000 miles. If 1 mile equals 1.6 kilometers, calate the distance these birds fly in kilometers.
    6·1 answer
  • The Trojan asteroids are found:_________ a) orbiting around the Kuiper Belt body Hector. b) beyond Neptune, with orbits similar
    11·2 answers
  • • Most of the galaxies in the universe are moving away from
    8·1 answer
  • A circular loop of wire with 10 turns, radius 0.241 m and resistance 0.235 Ohms is connected to a 13.1 V power supply. The magne
    15·1 answer
  • Can someone help please
    10·2 answers
  • Assignment
    12·1 answer
  • A jogger takes five minutes to run a distance of three kilometres. His speed, in metres per second, is approximately A) 5.5 M/S
    14·1 answer
  • Calculate the drop voltage for a battery of internal resistance 2 ohm and emf of 24 volt
    10·1 answer
  • Part D- Isolating a Variable with a Coefficient In some cases, neither of the two equations in the system will contain a variabl
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!